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Analysis on Nonlinear Distortion due to Modulation Instability and Proposal of Link Structure for Compensation in Optical Amplified Transmission Systems  

이용원 (고려대학교 전자컴퓨터공학과 광통신망연구실)
김용범 (KT 서비스개발연구소)
이명문 (수원과학대학 정보통신과)
유진태 (고려대학교 전자컴퓨터공학과 광통신망연구실)
박진우 (고려대학교 전자컴퓨터공학과 광통신망연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.28, no.5A, 2003 , pp. 316-322 More about this Journal
Abstract
We theoretically analyze the properties of nonlinear distortion due to modulation instability (MI), which is a major factor of performance degradation in optical amplified transmission systems, and propose an optical link structure to compensate MI based on the analysis. The proposed MI compensating link structure is composed of optical phase conjugators (OPCs) and dispersion compensating fibers (DCFs) in order to suppress nonlinear effects in optical transmission links. It has been confirmed through computer simulations that the performance of the proposed compensation scheme is superior to that of conventional compensation schemes for 500 km transmission.
Keywords
modulation instability; dispersion compensation; optical link design;
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